Thyroid disorders are becoming increasingly common for 2 reasons:
- Diet - soy consumption has been shown in a number of studies to have an adverse effect on thyroid function. I'll be highlighting some of the research in an article on the thyroid soon. Soy appears to be most detrimental in people with low levels of iodine--a deficiency becoming more common for reasons outlined below. If you have thyroid problems cut all soy out of your diet for three months--after that you can begin consuming miso and tempeh, but I recommend avoiding other soy products, including tofu. Other foods can also adversely affect the thyroid--they are Broccoli, Brussel sprouts, Cabbage, Cauliflower, Kale, Kohlrabi, Mustard, Rutabaga, and Turnips. If you have thyroid problems I suggest cutting these vegetables out of your diet completely for 3 months, then having your thyroid tested. If your thyroid function is better, continue eliminating these foods. If there is no change eat them in moderation.
- Environmental pollutants - Perchlorate and Bisphenol-A are two pollutants that appear to be in every human alive--and they both are known to disrupt thyroid function. Perchlorate does this by interfering with iodine absorption (a major cause of iodine deficiency), and bisphenol-a does it by inappropriately stimulating estrogen receptors. In an upcoming article I will provide info on how to avoid these and detox your body—keep an eye out. In the meantime you can view the environmental pollutants page for more information.